Progressive failure analysis of unidirectional fiber-reinforced polymers with inhomogeneous interphase and randomly distributed fibers under transverse tensile loading

Romanowicz, Marek

doi:10.1016/j.compositesa.2010.09.001

Cited by 59 publications

(41 citation statements)

References 36 publications

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“…The first RVE had no interphase region and employed the Mori-Tanaka method [28,36], but its phases were not perfectly bonded to each other, whereby different adhesion ratios were applied between the matrix and the filler. In the second RVE model, the effective interface model (EIM) was used and it was assumed that the equivalent-continuum interphase region was continuous and homogeneous [17], assuming an elastic modulus of 3.5 GPa for the interphase region (which is relatively more than that of the bulk polymer modulus (2.7 GPa)). In modelling the third RVE, a graded interphase [25] was incorporated in 10 different layers.…”

Section: Finite Element Approachmentioning

confidence: 99%

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The Effects of Interphase and Interface Characteristics on the Tensile Behaviour of POM/CaCO3 Nanocomposites

Zakaria

Shelesh‐Nezhad

2014

Nanomaterials and Nanotechnology

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The condition of the interfacial area and interphase region in a nanocomposite can significantly affect its mechanical performance. In this research, the tensile performance of a POM/CaCO3 nanocomposite, including the modulus of elasticity and tensile strength, are analysed using different mathematical models and the Ansys FEM software. The mechanisms of the plastic deformation and crazing of the POM/CaCO3 nanocomposite were investigated using FEM. Furthermore, the effects of interface adhesion and the interphase property on interfacial debonding, as well as tensile properties, were analysed. The tensile strength of the nanocomposite could not be greater than that of bulk POM because of the failure which was initiated from the matrix. By stiffening the interphase and increasing the adhesion between nanoparticle and polymer, the nanocomposite's elastic modulus and strength were increased. Two toughening mechanisms, including plastic deformation and crack initiation, were observed in the POM/CaCO3 nanocomposite. The high interfacial adhesion of the matrix to the particles led to the formation and propagation of crazes along the extension load in the POM matrix. The tensile strengths of different nanocomposites were over-predicted by the Pukanszky model, while the moduli magnitudes estimated by the Ji mathematical model were less when compared to those determined by FEM.

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Section: Finite Element Approachmentioning

confidence: 99%

“…In modelling the third RVE, a graded interphase [25] was incorporated in 10 different layers. The layers' moduli and Poisson coefficients varied exponentially along the particle radius between matrix and particle using equation (8) [17]:…”

Section: Finite Element Approachmentioning

confidence: 99%

The Effects of Interphase and Interface Characteristics on the Tensile Behaviour of POM/CaCO3 Nanocomposites

Zakaria

Shelesh‐Nezhad

2014

Nanomaterials and Nanotechnology

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“…While this structure produces reasonable results under elastic loading, the results produce significant over predictions of strength and damage resistance. Therefore, a random distribution is necessary to accurately predict crack initiation and propagation [20][21][22][23][24].…”

Section: Micromechanicalmentioning

confidence: 99%

A micro to macro approach to polymer matrix composites damage modeling : final LDRD report.

English

Brown

Briggs

2013

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Capabilities are developed, verified and validated to generate constitutive responses using material and geometric measurements with representative volume elements (RVE). The geometrically accurate RVEs are used for determining elastic properties and damage initiation and propagation analysis. Finite element modeling of the meso-structure over the distribution of characterizing measurements is automated and various boundary conditions are applied. Plain and harness weave composites are investigated. Continuum yarn damage, softening behavior and an elastic-plastic matrix are combined with known materials and geometries in order to estimate the macroscopic response as characterized by a set of orthotropic material parameters. Damage mechanics and coupling effects are investigated and macroscopic material models are demonstrated and discussed. Prediction of the elastic, damage, and failure behavior of woven composites will aid in macroscopic constitutive characterization for modeling and optimizing advanced composite systems. 4 5

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“…Matsuda draw a conclusion that fibre distribution type in the RVE did not affect the macroscopic properties of laminated plate but had a huge impact on the microscopic stress distribution [8] . Romanowicz found that fibe distribution types not only had a major influence on the matrix crack initiation but also could lead to stress concentration and strain localization [9] . Lei Yang proposed the random sequential expansion method which was equivalent to the completely random type (CSR) and could quickly generate a high volume fraction RVE [10] .…”

Section: Introductionmentioning

confidence: 99%

The mechanical property prediction of fibre-reinforced composite materials based on a new generating random fibre distributions method

Huang¹,

Zhao

Dai³

et al. 2015

Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering

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This paper focuses on the issues of the fibre-reinforced composite material microstructure and presents a new numerical method to generate random fibre distributions and predict the macroscopic mechanical properties of composite materials based on the represent volume element (RVE). The method, named the random sequence generation algorithm (RSGA), obtains fibre radius distributions and positional relationships by image processing to generate a statistical equivalence RVE effectively. On this basis, the composite material microstructure finite element model is established to predict its macroscopic elastic properties by Python language in ABAQUS. Comparative analysis shows the algorithm is in good agreement with experimental results and has the statistical equivalence herein. The research of this paper on the algorithm for composite materials of fibre distributions provides a useful alternative to generate random numerical models that can be used in micromechanical analysis of composite materials.

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Progressive failure analysis of unidirectional fiber-reinforced polymers with inhomogeneous interphase and randomly distributed fibers under transverse tensile loading

Cited by 59 publications

References 36 publications

The Effects of Interphase and Interface Characteristics on the Tensile Behaviour of POM/CaCO3 Nanocomposites

The Effects of Interphase and Interface Characteristics on the Tensile Behaviour of POM/CaCO3 Nanocomposites

A micro to macro approach to polymer matrix composites damage modeling : final LDRD report.

The mechanical property prediction of fibre-reinforced composite materials based on a new generating random fibre distributions method

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